Display the class number line (0–130) or the Number Line Display Master in Lesson 1 where students can see and reach it with a pointer.
Attach a desk number line (0–100) to each student’s desk to use throughout the year.
Display the Math Practices page where all students can see it.
Gather a collection of colored square-inch tiles. Each student will need about 20 tiles.
Gather beans. Each student will need about 10 beans.
Gather connecting cubes. Each student will need about 20 cubes.
Gather clear plastic spinners (or paper clips and pencils) and an assortment of colored game markers.
Prepare a collections of coins (pennies, nickels, and dimes).
Have the following tools readily available for the Daily Practice and Problems items in this unit.
- You and your students will need:
Triangle Flash Cards: Group D
(Teacher Guide)
Addition Facts I Know chart from Unit 3 Lesson 1 (Teacher Guide)
200 Chart (Student Activity Book) Reference
20 connecting cubes
number lines
coin jars from Unit 1 Lesson 1
collection of coins
- You will need:
beans or other counters
| LESSON | SESSIONS | DESCRIPTION | SUPPLIES |
|---|---|---|---|
LESSON 1Number Sentences for Tile Designs |
2 | Students make designs with square-inch tiles and write number sentences to describe them. This activity helps students see that the equal sign represents the relationship between two quantities. In this lesson they write number sentences that have more than one addend on each side of the equal sign (e.g., 4 + 2 = 1 + 2 + 3). Students make connections between geometric and numerical representations of problems. |
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LESSON 2Cover Up: Fact Families |
1 | Students investigate fact families. They practice writing related addition and subtraction sentences while playing the Cover Up game. The game prepares students for a more complete discussion of subtraction strategies in Lesson 3. |
|
LESSON 3Explore Sutraction Word Problems |
2 | Students solve different types of take away and comparison subtraction problems. They look at important information in each problem and discuss strategies and tools to solve them. After looking at models of subtraction word problems, students write their own problems. |
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LESSON 4Our Favorite: A Data Collection Lab |
2 | In this teacher-guided lab, students use the TIMS Laboratory Method to graph and explore data collected in their classroom about their favorite lunches. They use strategies to solve addition and subtraction problems based on the data. |
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LESSON 5Patterns on the 200 Chart |
2–3 |
Students are introduced to the 200 Chart and explore patterns and movement on the chart. They discuss even and odd numbers and intervals. Students then apply their knowledge of patterns to complete sections of the chart. |
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LESSON 6Moves on the 200 Chart |
2–3 | Students explore number relationships on the 200 Chart by finding target numbers and solving problems using more than and less than. They learn how to use the chart to solve addition and subtraction problems. Students then play a game involving adding and subtracting on the 200 Chart. |
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LESSON 7Exploring the Number Line |
2 | Students compare the number line to the 200 Chart. They identify patterns and moves on the 200 Chart and represent them on the number line. They play Moving on the Number Line, a game involving adding and subtracting on the number line. |
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LESSON 8Check It Out |
2 | In the Adventure Book story, “Check It Out,” Marcus solves a problem in the grocery store with strategies he uses in math class. Students use a variety of strategies to solve grocery store problems. After solving an assessment problem two ways, students use a checklist to check their own work. |
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LESSON 9Money Problems |
1–2 | Students listen to the story Alexander, Who Used to Be Rich Last Sunday by Judith Viorst. They choose a tool or strategy to help them calculate how much money Alexander has left after each of his expenditures. Students play a game where they add coin values using a variety of tools. |
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